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Transmission device based on planetary gear train as well as internal transmission and variable speed control method

A technology of planetary gear train and internal transmission, applied in the direction of gear transmission, wheel transmission, transmission, etc., can solve problems such as complex structure, and achieve the effect of improving transmission efficiency, stable transmission and low friction

Pending Publication Date: 2018-07-10
GUANGDONG LOFANDI INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a novel planetary gear-based transmission, an internal transmission and a speed change control method in view of the defects of complex structures in existing transmission devices that use planetary gear trains as transmission mechanisms

Method used

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  • Transmission device based on planetary gear train as well as internal transmission and variable speed control method
  • Transmission device based on planetary gear train as well as internal transmission and variable speed control method
  • Transmission device based on planetary gear train as well as internal transmission and variable speed control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] see figure 1 , the internal transmission in the illustration is a preferred embodiment of the transmission device based on the planetary gear train of the present invention, which specifically includes a flywheel seat 1, an overrunning clutch assembly 2, a clutch 3, a planetary gear train 4, a hub 51 and an axle 6.

[0048] combine figure 2 The flywheel seat 1 is connected with the power flywheel of the bicycle as the power input part of the internal transmission, and is mounted on the axle 6 in rotation. 41. The planet carrier 42 of the second rotating part is connected, and the clutch mounting groove 101 and the first one-way transmission member mounting surface 102 are respectively provided on the flywheel seat 1, and the clutch mounting groove 101 of the flywheel seat 1 is assembled with the clutch 3 and The planet carrier 42 of the planetary gear train 4 is connected, the planet carrier 42 is connected to the hub 51 through the second one-way transmission member ...

Embodiment 2

[0065] see Figure 13 and Figure 14 In this embodiment, the orbit of the retaining block 211 located on the retainer 21 of the clutch overrunning assembly is set on the outer circumference of the retainer 21, while the inner ring of the retainer 21 directly passes through the first one-way transmission member 22 and The flywheel seat 1 is connected, the circular track where the holding block 211 is located is located at the same axial position as the first one-way transmission member 22, the cross section of the cage 21 is concave, and the inner ring gear 41 adopts the first embodiment Figure 7 As shown, the concave circumferential groove of the cage 21 and the end of the inner ring gear 41 are fitted and assembled by rotating rolling elements. Such an arrangement reduces the axial length of the cage 21, which is beneficial to reducing the length dimension of the inner transmission for which it is applied.

Embodiment 3

[0067] see Figure 15 and Figure 16 , the circular track where the transmission protrusion 411 located on the ring gear 42 of the clutch overrunning assembly in this embodiment is set on the outer circumference of the inner teeth of the ring gear, and the cage 21 adopts the first embodiment Figure 6 With the structure shown in , the overrunning clutch assembly can be directly arranged in the meshing area of ​​the inner ring gear and the planetary gear, which is beneficial to reduce the length of the internal transmission for which it is applied.

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Abstract

The invention discloses a transmission device based on a planetary gear train as well as an internal transmission and a variable speed control method which are applied to the transmission device. According to the transmission device, a first rotating component of the planetary gear train connected with a power input part through a clutch; a second rotating component of the planetary gear train isconnected with a first power output part through an overrunning clutch component; the power input component is also connected with the second rotating component through the overrunning clutch component; by cooperation of the clutch and the overrunning clutch component, the transmission direction of the planetary gear train is switched between the first rotating component and the second rotating component; all transmission ratios can be realized by fully utilizing the same planetary gear train; the transmission efficiency of the internal transmission is improved; the structure, the size and theweight of the internal transmission are reduced; and popularization and application of the planetary gear train internal transmission can be beneficially realized.

Description

technical field [0001] The invention belongs to the transmission technology of a planetary gear train, and in particular relates to a transmission device based on a planetary gear train, an internal transmission and a speed change control method. Background technique [0002] The available speed ratio switching mode of the existing bicycle internal transmission is relatively simple. Usually, multi-stage multi-connected planetary gear trains are used in series, and the switching of different gear ratios is realized by controlling the locking and unlocking of the center wheel. The adjacent planetary gear trains The transmission parts are connected by a one-way clutch, which can only realize one-way power transmission, which causes the structure of the internal transmission to be more complicated and bulky, which is unfavorable for the popularization and application of the internal transmission. [0003] According to the transmission characteristics of the planetary gear system...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/70B62M11/14
CPCF16H3/70B62M11/14F16H2200/2079F16H2003/445
Inventor 李激初
Owner GUANGDONG LOFANDI INTELLIGENT TECH CO LTD